<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <script src="js.js"></script>
    <title>Document</title>
</head>
<body>
    <input type="text" id="flower">
    <button type="button" onclick="isFlower()">isFlower</button><br><br>

    <input type="text" id="a1">+<input type="text" id="a2">
    <button type="button" onclick="add()">=</button><input type="text" id="a3"><br>
    <input type="text" id="b1">-<input type="text" id="b2">
    <button type="button" onclick="minus()">=</button><input type="text" id="b3"><br>
    <input type="text" id="c1">*<input type="text" id="c2">
    <button type="button" onclick="mult()">=</button><input type="text" id="c3"><br>
    <input type="text" id="d1">/<input type="text" id="d2">
    <button type="button" onclick="divi()">=</button><input type="text" id="d3"><br>
    <input type="text" id="e1">^<input type="text" id="e2">
    <button type="button" onclick="power()">=</button><input type="text" id="e3"><br><br>

    <input type="text" id="stringZ"><button type="button" onclick="zString()">子串</button><br>

    
</body>
</html>